At this point I don't think there's anything he can say that will make me go, "Phew, I'm 100% sold!", because there's just so much left to DO. And what he does will be more important. But I just want to start getting a sense for what he'll be like as a head coach, how he handles the media, and see whether anyone in the media tries to "test" him with questions that they normally would get a non-answer from Bill on. I always appreciated the grump that Belichick was (while we were winning at least), but it would be a nice change of pace if Mayo is a bit more personable.
Also, I'm hoping just to see Mayo be excited for this opportunity. He's earned it, and everyone around him seems to be excited, so it'll just be nice to see him bask in the moment a bit.